diff --git a/android/app/build.gradle b/android/app/build.gradle
index 056d00345b859a6e975601b888c8c22879ca30b0..9435d1ba4bd53edf604fc5a5bd6c35a595d1fd11 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -37,7 +37,7 @@ if (keystorePropertiesFile.exists()) {
 }
 
 android {
-    compileSdkVersion 33
+    compileSdkVersion 34
     namespace "org.benoitharrault.spotifyplaylistgenerator"
 
     defaultConfig {
diff --git a/android/gradle.properties b/android/gradle.properties
index aa51064abebb79ba519e600afb7af23779154d4e..135006f9c1386c8757595c43e890e911f732f5a3 100644
--- a/android/gradle.properties
+++ b/android/gradle.properties
@@ -1,5 +1,5 @@
 org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true
-app.versionName=0.0.5
-app.versionCode=5
+app.versionName=0.0.6
+app.versionCode=6
diff --git a/assets/translations/en.json b/assets/translations/en.json
index 6a6a8eb8a608cff460ebfd2dad4bb97b5f5c6925..e1557d711cb18bc780e9914ed0ce387a3c449800 100644
--- a/assets/translations/en.json
+++ b/assets/translations/en.json
@@ -1,3 +1,15 @@
 {
-  "app_name": "Spotify playlist generator"
+  "app_name": "Spotify playlist generator",
+
+  "settings_title": "Settings",
+  "settings_label_theme": "Theme mode",
+
+  "about_title": "Informations",
+  "about_content": "Spotify playlist generator",
+  "about_version": "Version: {version}",
+
+  "page_home": "Home",
+  "page_playlist": "Playlists",
+
+  "": ""
 }
diff --git a/assets/translations/fr.json b/assets/translations/fr.json
index 654351d117c90f7cc19a3cff20717023a01ebdd1..f3f7479de907e759058a4c05b29899ffcb058224 100644
--- a/assets/translations/fr.json
+++ b/assets/translations/fr.json
@@ -1,3 +1,15 @@
 {
-  "app_name": "Générateur de playlist Spotify"
+  "app_name": "Générateur de playlist Spotify",
+
+  "settings_title": "Réglages",
+  "settings_label_theme": "Thème de couleurs",
+
+  "about_title": "Informations",
+  "about_content": "Générateur de playlist Spotify.",
+  "about_version": "Version : {version}",
+
+  "page_home": "Accueil",
+  "page_playlist": "Playlists",
+
+  "": ""
 }
diff --git a/fastlane/metadata/android/en-US/changelogs/6.txt b/fastlane/metadata/android/en-US/changelogs/6.txt
new file mode 100644
index 0000000000000000000000000000000000000000..060b202b87dcd33388eb8a9d1a45cbd276fc8ba3
--- /dev/null
+++ b/fastlane/metadata/android/en-US/changelogs/6.txt
@@ -0,0 +1 @@
+Improve/normalize app architecture.
diff --git a/fastlane/metadata/android/fr-FR/changelogs/6.txt b/fastlane/metadata/android/fr-FR/changelogs/6.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3cab228cbe7443782c4b187cbe805e4d0ba8e71a
--- /dev/null
+++ b/fastlane/metadata/android/fr-FR/changelogs/6.txt
@@ -0,0 +1 @@
+Amélioration/normalisation de l'architecture de l'application.
diff --git a/lib/config/activity_page.dart b/lib/config/activity_page.dart
new file mode 100644
index 0000000000000000000000000000000000000000..88dab9895d0b749c67c26880e2ff0e7cd07da657
--- /dev/null
+++ b/lib/config/activity_page.dart
@@ -0,0 +1,52 @@
+import 'package:flutter/material.dart';
+import 'package:unicons/unicons.dart';
+
+import 'package:spotifyplaylistgenerator/ui/pages/playlist.dart';
+import 'package:spotifyplaylistgenerator/ui/pages/home.dart';
+
+class ActivityPageItem {
+  final Icon icon;
+  final Widget page;
+  final String code;
+
+  const ActivityPageItem({
+    required this.icon,
+    required this.page,
+    required this.code,
+  });
+}
+
+class ActivityPage {
+  static const indexHome = 0;
+  static const pageHome = ActivityPageItem(
+    icon: Icon(UniconsLine.home),
+    page: PageHome(),
+    code: 'page_home',
+  );
+
+  static const indexPlaylist = 1;
+  static const pagePlaylist = ActivityPageItem(
+    icon: Icon(UniconsLine.list_ul),
+    page: PagePlaylist(),
+    code: 'page_playlist',
+  );
+
+  static Map<int, ActivityPageItem> items = {
+    indexHome: pageHome,
+    indexPlaylist: pagePlaylist,
+  };
+
+  static bool isIndexAllowed(int pageIndex) {
+    return items.keys.contains(pageIndex);
+  }
+
+  static ActivityPageItem getPageItem(int pageIndex) {
+    return items[pageIndex] ?? pageHome;
+  }
+
+  static Widget getPageWidget(int pageIndex) {
+    return items[pageIndex]?.page ?? pageHome.page;
+  }
+
+  static int itemsCount = ActivityPage.items.length;
+}
diff --git a/lib/config/app_colors.dart b/lib/config/app_colors.dart
deleted file mode 100644
index a1ca589a1cef364687bbb2ee76e4073ce17ea650..0000000000000000000000000000000000000000
--- a/lib/config/app_colors.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-import 'package:flutter/material.dart';
-
-class AppColors {
-  static const Color primary = contentColorCyan;
-  static const Color menuBackground = Color(0xFF090912);
-  static const Color itemsBackground = Color(0xFF1B2339);
-  static const Color pageBackground = Color(0xFF282E45);
-  static const Color mainTextColor1 = Colors.white;
-  static const Color mainTextColor2 = Colors.white70;
-  static const Color mainTextColor3 = Colors.white38;
-  static const Color mainGridLineColor = Colors.white10;
-  static const Color borderColor = Colors.white54;
-  static const Color gridLinesColor = Color(0x11FFFFFF);
-
-  static const Color contentColorBlack = Colors.black;
-  static const Color contentColorWhite = Colors.white;
-  static const Color contentColorBlue = Color(0xFF2196F3);
-  static const Color contentColorYellow = Color(0xFFFFC300);
-  static const Color contentColorOrange = Color(0xFFFF683B);
-  static const Color contentColorGreen = Color(0xFF3BFF49);
-  static const Color contentColorPurple = Color(0xFF6E1BFF);
-  static const Color contentColorPink = Color(0xFFFF3AF2);
-  static const Color contentColorRed = Color(0xFFE80054);
-  static const Color contentColorCyan = Color(0xFF50E4FF);
-}
diff --git a/lib/config/default_global_settings.dart b/lib/config/default_global_settings.dart
new file mode 100644
index 0000000000000000000000000000000000000000..5fdf99747786b989caa032b9743d0c40c1fdd5f3
--- /dev/null
+++ b/lib/config/default_global_settings.dart
@@ -0,0 +1,33 @@
+import 'package:spotifyplaylistgenerator/utils/tools.dart';
+
+class DefaultGlobalSettings {
+  // available global parameters codes
+  static const String parameterCodeSkin = 'skin';
+  static const List<String> availableParameters = [
+    parameterCodeSkin,
+  ];
+
+  // skin: available values
+  static const String skinValueDefault = 'default';
+  static const List<String> allowedSkinValues = [
+    skinValueDefault,
+  ];
+  // skin: default value
+  static const String defaultSkinValue = skinValueDefault;
+
+  // available values from parameter code
+  static List<String> getAvailableValues(String parameterCode) {
+    switch (parameterCode) {
+      case parameterCodeSkin:
+        return DefaultGlobalSettings.allowedSkinValues;
+    }
+
+    printlog('Did not find any available value for global parameter "$parameterCode".');
+    return [];
+  }
+
+  // parameters displayed with assets (instead of painter)
+  static List<String> displayedWithAssets = [
+    //
+  ];
+}
diff --git a/lib/config/screen.dart b/lib/config/screen.dart
new file mode 100644
index 0000000000000000000000000000000000000000..d712edf4eba4828f48a11a5bfdb61b7664a122b1
--- /dev/null
+++ b/lib/config/screen.dart
@@ -0,0 +1,61 @@
+import 'package:flutter/material.dart';
+import 'package:unicons/unicons.dart';
+
+import 'package:spotifyplaylistgenerator/ui/screens/about.dart';
+import 'package:spotifyplaylistgenerator/ui/screens/activity.dart';
+import 'package:spotifyplaylistgenerator/ui/screens/settings.dart';
+
+class ScreenItem {
+  final Icon icon;
+  final Widget screen;
+  final bool displayBottomNavBar;
+
+  const ScreenItem({
+    required this.icon,
+    required this.screen,
+    required this.displayBottomNavBar,
+  });
+}
+
+class Screen {
+  static const indexActivity = 0;
+  static const screenActivity = ScreenItem(
+    icon: Icon(UniconsLine.home),
+    screen: ScreenActivity(),
+    displayBottomNavBar: true,
+  );
+
+  static const indexSettings = 1;
+  static const screenSettings = ScreenItem(
+    icon: Icon(UniconsLine.setting),
+    screen: ScreenSettings(),
+    displayBottomNavBar: false,
+  );
+
+  static const indexAbout = 2;
+  static const screenAbout = ScreenItem(
+    icon: Icon(UniconsLine.info_circle),
+    screen: ScreenAbout(),
+    displayBottomNavBar: false,
+  );
+
+  static Map<int, ScreenItem> items = {
+    indexActivity: screenActivity,
+    indexSettings: screenSettings,
+    indexAbout: screenAbout,
+  };
+
+  static bool isIndexAllowed(int screenIndex) {
+    return items.keys.contains(screenIndex);
+  }
+
+  static Widget getWidget(int screenIndex) {
+    return items[screenIndex]?.screen ?? screenActivity.screen;
+  }
+
+  static bool displayBottomNavBar(int screenIndex) {
+    return items[screenIndex]?.displayBottomNavBar ?? screenActivity.displayBottomNavBar;
+  }
+
+  static int itemsCount = Screen.items.length;
+}
diff --git a/lib/config/theme.dart b/lib/config/theme.dart
index be390348c7868e7c63387df13e13c46de43f8a23..74f532fd5abf693979118609564d29167e902009 100644
--- a/lib/config/theme.dart
+++ b/lib/config/theme.dart
@@ -39,11 +39,9 @@ final ColorScheme lightColorScheme = ColorScheme.light(
   secondary: primarySwatch.shade500,
   onSecondary: Colors.white,
   error: errorColor,
-  background: textSwatch.shade200,
-  onBackground: textSwatch.shade500,
   onSurface: textSwatch.shade500,
   surface: textSwatch.shade50,
-  surfaceVariant: Colors.white,
+  surfaceContainerHighest: Colors.white,
   shadow: textSwatch.shade900.withOpacity(.1),
 );
 
@@ -52,11 +50,9 @@ final ColorScheme darkColorScheme = ColorScheme.dark(
   secondary: primarySwatch.shade500,
   onSecondary: Colors.white,
   error: errorColor,
-  background: const Color(0xFF171724),
-  onBackground: textSwatch.shade400,
   onSurface: textSwatch.shade300,
   surface: const Color(0xFF262630),
-  surfaceVariant: const Color(0xFF282832),
+  surfaceContainerHighest: const Color(0xFF282832),
   shadow: textSwatch.shade900.withOpacity(.2),
 );
 
@@ -192,5 +188,3 @@ final ThemeData darkTheme = lightTheme.copyWith(
     ),
   ),
 );
-
-final ThemeData appTheme = darkTheme;
diff --git a/lib/cubit/activity_cubit.dart b/lib/cubit/activity_cubit.dart
new file mode 100644
index 0000000000000000000000000000000000000000..02d692365b443705e2c6ffc33d18204c2da59e83
--- /dev/null
+++ b/lib/cubit/activity_cubit.dart
@@ -0,0 +1,82 @@
+import 'package:equatable/equatable.dart';
+import 'package:flutter/material.dart';
+import 'package:hydrated_bloc/hydrated_bloc.dart';
+
+import 'package:spotifyplaylistgenerator/models/activity/activity.dart';
+import 'package:spotifyplaylistgenerator/models/settings/settings_global.dart';
+
+part 'activity_state.dart';
+
+class ActivityCubit extends HydratedCubit<ActivityState> {
+  ActivityCubit()
+      : super(ActivityState(
+          currentActivity: Activity.createNull(),
+        ));
+
+  void updateState(Activity activity) {
+    emit(ActivityState(
+      currentActivity: activity,
+    ));
+  }
+
+  void refresh() {
+    final Activity activity = Activity(
+      // Settings
+      globalSettings: state.currentActivity.globalSettings,
+      // State
+      isConnected: state.currentActivity.isConnected,
+      // Base data
+      userId: state.currentActivity.userId,
+      // Activity data
+      token: state.currentActivity.token,
+    );
+    // activity.dump();
+
+    updateState(activity);
+  }
+
+  void startNewActivity({
+    required GlobalSettings globalSettings,
+  }) {
+    final Activity newActivity = Activity.createNew(
+      // Settings
+      globalSettings: globalSettings,
+    );
+
+    newActivity.dump();
+
+    updateState(newActivity);
+    refresh();
+  }
+
+  void quitActivity() {
+    state.currentActivity.isConnected = false;
+    refresh();
+  }
+
+  void resumeSavedActivity() {
+    state.currentActivity.isConnected = true;
+    refresh();
+  }
+
+  void deleteSavedActivity() {
+    state.currentActivity.isConnected = false;
+    refresh();
+  }
+
+  @override
+  ActivityState? fromJson(Map<String, dynamic> json) {
+    final Activity currentActivity = json['currentActivity'] as Activity;
+
+    return ActivityState(
+      currentActivity: currentActivity,
+    );
+  }
+
+  @override
+  Map<String, dynamic>? toJson(ActivityState state) {
+    return <String, dynamic>{
+      'currentActivity': state.currentActivity.toJson(),
+    };
+  }
+}
diff --git a/lib/cubit/activity_state.dart b/lib/cubit/activity_state.dart
new file mode 100644
index 0000000000000000000000000000000000000000..887b45e4255fd7de1cc7744569d82a38a66602f2
--- /dev/null
+++ b/lib/cubit/activity_state.dart
@@ -0,0 +1,15 @@
+part of 'activity_cubit.dart';
+
+@immutable
+class ActivityState extends Equatable {
+  const ActivityState({
+    required this.currentActivity,
+  });
+
+  final Activity currentActivity;
+
+  @override
+  List<dynamic> get props => <dynamic>[
+        currentActivity,
+      ];
+}
diff --git a/lib/cubit/nav_cubit_pages.dart b/lib/cubit/nav_cubit_pages.dart
new file mode 100644
index 0000000000000000000000000000000000000000..d6f50044ab90f7c40a157bb86c631ca9962d4adf
--- /dev/null
+++ b/lib/cubit/nav_cubit_pages.dart
@@ -0,0 +1,25 @@
+import 'package:hydrated_bloc/hydrated_bloc.dart';
+
+import 'package:spotifyplaylistgenerator/config/activity_page.dart';
+
+class NavCubitPage extends HydratedCubit<int> {
+  NavCubitPage() : super(0);
+
+  void updateIndex(int index) {
+    if (ActivityPage.isIndexAllowed(index)) {
+      emit(index);
+    } else {
+      emit(ActivityPage.indexHome);
+    }
+  }
+
+  @override
+  int fromJson(Map<String, dynamic> json) {
+    return ActivityPage.indexHome;
+  }
+
+  @override
+  Map<String, dynamic>? toJson(int state) {
+    return <String, int>{'pageIndex': state};
+  }
+}
diff --git a/lib/cubit/nav_cubit_screens.dart b/lib/cubit/nav_cubit_screens.dart
new file mode 100644
index 0000000000000000000000000000000000000000..ff29d15b7853f6869006442d2c4d6f200d81423f
--- /dev/null
+++ b/lib/cubit/nav_cubit_screens.dart
@@ -0,0 +1,37 @@
+import 'package:hydrated_bloc/hydrated_bloc.dart';
+
+import 'package:spotifyplaylistgenerator/config/screen.dart';
+
+class NavCubitScreen extends HydratedCubit<int> {
+  NavCubitScreen() : super(0);
+
+  void updateIndex(int index) {
+    if (Screen.isIndexAllowed(index)) {
+      emit(index);
+    } else {
+      goToActivityPage();
+    }
+  }
+
+  void goToActivityPage() {
+    emit(Screen.indexActivity);
+  }
+
+  void goToSettingsPage() {
+    emit(Screen.indexSettings);
+  }
+
+  void goToAboutPage() {
+    emit(Screen.indexAbout);
+  }
+
+  @override
+  int fromJson(Map<String, dynamic> json) {
+    return Screen.indexActivity;
+  }
+
+  @override
+  Map<String, dynamic>? toJson(int state) {
+    return <String, int>{'screenIndex': state};
+  }
+}
diff --git a/lib/cubit/settings_global_cubit.dart b/lib/cubit/settings_global_cubit.dart
new file mode 100644
index 0000000000000000000000000000000000000000..7db262183898d5b87477a5208e1b3c7caf7d552f
--- /dev/null
+++ b/lib/cubit/settings_global_cubit.dart
@@ -0,0 +1,60 @@
+import 'package:equatable/equatable.dart';
+import 'package:flutter/material.dart';
+import 'package:hydrated_bloc/hydrated_bloc.dart';
+
+import 'package:spotifyplaylistgenerator/config/default_global_settings.dart';
+import 'package:spotifyplaylistgenerator/models/settings/settings_global.dart';
+
+part 'settings_global_state.dart';
+
+class GlobalSettingsCubit extends HydratedCubit<GlobalSettingsState> {
+  GlobalSettingsCubit() : super(GlobalSettingsState(settings: GlobalSettings.createDefault()));
+
+  void setValues({
+    String? skin,
+  }) {
+    emit(
+      GlobalSettingsState(
+        settings: GlobalSettings(
+          skin: skin ?? state.settings.skin,
+        ),
+      ),
+    );
+  }
+
+  String getParameterValue(String code) {
+    switch (code) {
+      case DefaultGlobalSettings.parameterCodeSkin:
+        return GlobalSettings.getSkinValueFromUnsafe(state.settings.skin);
+    }
+    return '';
+  }
+
+  void setParameterValue(String code, String value) {
+    final String skin = (code == DefaultGlobalSettings.parameterCodeSkin)
+        ? value
+        : getParameterValue(DefaultGlobalSettings.parameterCodeSkin);
+
+    setValues(
+      skin: skin,
+    );
+  }
+
+  @override
+  GlobalSettingsState? fromJson(Map<String, dynamic> json) {
+    final String skin = json[DefaultGlobalSettings.parameterCodeSkin] as String;
+
+    return GlobalSettingsState(
+      settings: GlobalSettings(
+        skin: skin,
+      ),
+    );
+  }
+
+  @override
+  Map<String, dynamic>? toJson(GlobalSettingsState state) {
+    return <String, dynamic>{
+      DefaultGlobalSettings.parameterCodeSkin: state.settings.skin,
+    };
+  }
+}
diff --git a/lib/cubit/settings_global_state.dart b/lib/cubit/settings_global_state.dart
new file mode 100644
index 0000000000000000000000000000000000000000..ebcddd700f252257223ca8e16c85202b04f3ff24
--- /dev/null
+++ b/lib/cubit/settings_global_state.dart
@@ -0,0 +1,15 @@
+part of 'settings_global_cubit.dart';
+
+@immutable
+class GlobalSettingsState extends Equatable {
+  const GlobalSettingsState({
+    required this.settings,
+  });
+
+  final GlobalSettings settings;
+
+  @override
+  List<dynamic> get props => <dynamic>[
+        settings,
+      ];
+}
diff --git a/lib/cubit/theme_cubit.dart b/lib/cubit/theme_cubit.dart
new file mode 100644
index 0000000000000000000000000000000000000000..b793e895dbb0c672d451cd403e0036c3d9ac9b42
--- /dev/null
+++ b/lib/cubit/theme_cubit.dart
@@ -0,0 +1,31 @@
+import 'package:equatable/equatable.dart';
+import 'package:flutter/material.dart';
+import 'package:hydrated_bloc/hydrated_bloc.dart';
+
+part 'theme_state.dart';
+
+class ThemeCubit extends HydratedCubit<ThemeModeState> {
+  ThemeCubit() : super(const ThemeModeState());
+
+  void getTheme(ThemeModeState state) {
+    emit(state);
+  }
+
+  @override
+  ThemeModeState? fromJson(Map<String, dynamic> json) {
+    switch (json['themeMode']) {
+      case 'ThemeMode.dark':
+        return const ThemeModeState(themeMode: ThemeMode.dark);
+      case 'ThemeMode.light':
+        return const ThemeModeState(themeMode: ThemeMode.light);
+      case 'ThemeMode.system':
+      default:
+        return const ThemeModeState(themeMode: ThemeMode.system);
+    }
+  }
+
+  @override
+  Map<String, String>? toJson(ThemeModeState state) {
+    return <String, String>{'themeMode': state.themeMode.toString()};
+  }
+}
diff --git a/lib/cubit/theme_state.dart b/lib/cubit/theme_state.dart
new file mode 100644
index 0000000000000000000000000000000000000000..e479a50f12fe72a35a1fd1722ff72afbb692a136
--- /dev/null
+++ b/lib/cubit/theme_state.dart
@@ -0,0 +1,15 @@
+part of 'theme_cubit.dart';
+
+@immutable
+class ThemeModeState extends Equatable {
+  const ThemeModeState({
+    this.themeMode,
+  });
+
+  final ThemeMode? themeMode;
+
+  @override
+  List<Object?> get props => <Object?>[
+        themeMode,
+      ];
+}
diff --git a/lib/main.dart b/lib/main.dart
index ca38cd475a76399f6102e414d3f70bb462ef0246..1241841d7221e5728e084366c54ed83f4abd2287 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,25 +1,42 @@
+import 'dart:io';
+
 import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:hive/hive.dart';
+import 'package:hydrated_bloc/hydrated_bloc.dart';
+import 'package:path_provider/path_provider.dart';
 
 import 'package:spotifyplaylistgenerator/config/theme.dart';
-import 'package:spotifyplaylistgenerator/ui/screens/skeleton_screen.dart';
+import 'package:spotifyplaylistgenerator/cubit/activity_cubit.dart';
+import 'package:spotifyplaylistgenerator/cubit/nav_cubit_pages.dart';
+import 'package:spotifyplaylistgenerator/cubit/nav_cubit_screens.dart';
+import 'package:spotifyplaylistgenerator/cubit/settings_global_cubit.dart';
+import 'package:spotifyplaylistgenerator/cubit/theme_cubit.dart';
+import 'package:spotifyplaylistgenerator/ui/skeleton.dart';
 
 void main() async {
+  // Initialize packages
   WidgetsFlutterBinding.ensureInitialized();
   await EasyLocalization.ensureInitialized();
-
-  runApp(
-    EasyLocalization(
-      path: 'assets/translations',
-      supportedLocales: const <Locale>[
-        Locale('en'),
-        Locale('fr'),
-      ],
-      fallbackLocale: const Locale('en'),
-      useFallbackTranslations: true,
-      child: const MyApp(),
-    ),
+  final Directory tmpDir = await getTemporaryDirectory();
+  Hive.init(tmpDir.toString());
+  HydratedBloc.storage = await HydratedStorage.build(
+    storageDirectory: tmpDir,
   );
+
+  SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp])
+      .then((value) => runApp(EasyLocalization(
+            path: 'assets/translations',
+            supportedLocales: const <Locale>[
+              Locale('en'),
+              Locale('fr'),
+            ],
+            fallbackLocale: const Locale('en'),
+            useFallbackTranslations: true,
+            child: const MyApp(),
+          )));
 }
 
 class MyApp extends StatelessWidget {
@@ -27,16 +44,33 @@ class MyApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Spotify playlist generator',
-      theme: appTheme,
-      home: const SkeletonScreen(),
-
-      // Localization stuff
-      localizationsDelegates: context.localizationDelegates,
-      supportedLocales: context.supportedLocales,
-      locale: context.locale,
-      debugShowCheckedModeBanner: false,
+    return MultiBlocProvider(
+      providers: [
+        BlocProvider<NavCubitPage>(create: (context) => NavCubitPage()),
+        BlocProvider<NavCubitScreen>(create: (context) => NavCubitScreen()),
+        BlocProvider<ThemeCubit>(create: (context) => ThemeCubit()),
+        BlocProvider<ActivityCubit>(create: (context) => ActivityCubit()),
+        BlocProvider<GlobalSettingsCubit>(create: (context) => GlobalSettingsCubit()),
+      ],
+      child: BlocBuilder<ThemeCubit, ThemeModeState>(
+        builder: (BuildContext context, ThemeModeState state) {
+          return MaterialApp(
+            title: 'Spotify playlist generator',
+            home: const SkeletonScreen(),
+
+            // Theme stuff
+            theme: lightTheme,
+            darkTheme: darkTheme,
+            themeMode: state.themeMode,
+
+            // Localization stuff
+            localizationsDelegates: context.localizationDelegates,
+            supportedLocales: context.supportedLocales,
+            locale: context.locale,
+            debugShowCheckedModeBanner: false,
+          );
+        },
+      ),
     );
   }
 }
diff --git a/lib/models/activity/activity.dart b/lib/models/activity/activity.dart
new file mode 100644
index 0000000000000000000000000000000000000000..0fe889c5cfd6fdb02193b1fcf0b90e84527093a0
--- /dev/null
+++ b/lib/models/activity/activity.dart
@@ -0,0 +1,88 @@
+import 'package:spotifyplaylistgenerator/models/settings/settings_global.dart';
+import 'package:spotifyplaylistgenerator/utils/tools.dart';
+
+class Activity {
+  Activity({
+    // Settings
+    required this.globalSettings,
+
+    // State
+    this.isConnected = false,
+
+    // Base data
+    this.userId = '',
+
+    // Activity data
+    this.token = 1,
+  });
+
+  // Settings
+  final GlobalSettings globalSettings;
+
+  // State
+  bool isConnected;
+
+  // Base data
+  String userId;
+
+  // Activity data
+  int token;
+
+  factory Activity.createNull() {
+    return Activity(
+      // Settings
+      globalSettings: GlobalSettings.createDefault(),
+      // Base data
+      userId: '',
+    );
+  }
+
+  factory Activity.createNew({
+    GlobalSettings? globalSettings,
+  }) {
+    final GlobalSettings newGlobalSettings = globalSettings ?? GlobalSettings.createDefault();
+
+    return Activity(
+      // Settings
+      globalSettings: newGlobalSettings,
+      // State
+      isConnected: false,
+      // Base data
+      userId: '',
+    );
+  }
+
+  void dump() {
+    printlog('');
+    printlog('## Current activity dump:');
+    printlog('');
+    printlog('$Activity:');
+    printlog('  Settings');
+    globalSettings.dump();
+    printlog('  State');
+    printlog('    isConnected: $isConnected');
+    printlog('  Base data');
+    printlog('    userId: $userId');
+    printlog('  Activity data');
+    printlog('    token: $token');
+    printlog('');
+  }
+
+  @override
+  String toString() {
+    return '$Activity(${toJson()})';
+  }
+
+  Map<String, dynamic>? toJson() {
+    return <String, dynamic>{
+      // Settings
+      'globalSettings': globalSettings.toJson(),
+      // State
+      'isConnected': isConnected,
+      // Base data
+      'userId': userId,
+      // Activity data
+      'token': token,
+    };
+  }
+}
diff --git a/lib/models/settings/settings_global.dart b/lib/models/settings/settings_global.dart
new file mode 100644
index 0000000000000000000000000000000000000000..292d91d063a9e31506f3caa7905bb5e3a1651625
--- /dev/null
+++ b/lib/models/settings/settings_global.dart
@@ -0,0 +1,41 @@
+import 'package:spotifyplaylistgenerator/config/default_global_settings.dart';
+import 'package:spotifyplaylistgenerator/utils/tools.dart';
+
+class GlobalSettings {
+  String skin;
+
+  GlobalSettings({
+    required this.skin,
+  });
+
+  static String getSkinValueFromUnsafe(String skin) {
+    if (DefaultGlobalSettings.allowedSkinValues.contains(skin)) {
+      return skin;
+    }
+
+    return DefaultGlobalSettings.defaultSkinValue;
+  }
+
+  factory GlobalSettings.createDefault() {
+    return GlobalSettings(
+      skin: DefaultGlobalSettings.defaultSkinValue,
+    );
+  }
+
+  void dump() {
+    printlog('$GlobalSettings:');
+    printlog('  ${DefaultGlobalSettings.parameterCodeSkin}: $skin');
+    printlog('');
+  }
+
+  @override
+  String toString() {
+    return '$GlobalSettings(${toJson()})';
+  }
+
+  Map<String, dynamic>? toJson() {
+    return <String, dynamic>{
+      DefaultGlobalSettings.parameterCodeSkin: skin,
+    };
+  }
+}
diff --git a/lib/ui/helpers/app_titles.dart b/lib/ui/helpers/app_titles.dart
new file mode 100644
index 0000000000000000000000000000000000000000..b98107b12fabc3114ebfbec994166b588abcf1ad
--- /dev/null
+++ b/lib/ui/helpers/app_titles.dart
@@ -0,0 +1,32 @@
+import 'package:easy_localization/easy_localization.dart';
+import 'package:flutter/material.dart';
+
+class AppHeader extends StatelessWidget {
+  const AppHeader({super.key, required this.text});
+
+  final String text;
+
+  @override
+  Widget build(BuildContext context) {
+    return Text(
+      tr(text),
+      textAlign: TextAlign.start,
+      style: Theme.of(context).textTheme.headlineMedium!.apply(fontWeightDelta: 2),
+    );
+  }
+}
+
+class AppTitle extends StatelessWidget {
+  const AppTitle({super.key, required this.text});
+
+  final String text;
+
+  @override
+  Widget build(BuildContext context) {
+    return Text(
+      tr(text),
+      textAlign: TextAlign.start,
+      style: Theme.of(context).textTheme.titleLarge!.apply(fontWeightDelta: 2),
+    );
+  }
+}
diff --git a/lib/ui/nav/bottom_nav_bar.dart b/lib/ui/nav/bottom_nav_bar.dart
new file mode 100644
index 0000000000000000000000000000000000000000..f89af4babd5860c8277de07877450f1ab4bbb1a5
--- /dev/null
+++ b/lib/ui/nav/bottom_nav_bar.dart
@@ -0,0 +1,49 @@
+import 'package:easy_localization/easy_localization.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+import 'package:spotifyplaylistgenerator/config/activity_page.dart';
+import 'package:spotifyplaylistgenerator/cubit/nav_cubit_pages.dart';
+
+class BottomNavBar extends StatelessWidget {
+  const BottomNavBar({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Card(
+      margin: const EdgeInsets.only(top: 1, right: 4, left: 4),
+      elevation: 4,
+      shadowColor: Theme.of(context).colorScheme.shadow,
+      color: Theme.of(context).colorScheme.surfaceContainerHighest,
+      shape: const RoundedRectangleBorder(
+        borderRadius: BorderRadius.only(
+          topLeft: Radius.circular(16),
+          topRight: Radius.circular(16),
+        ),
+      ),
+      child: BlocBuilder<NavCubitPage, int>(builder: (BuildContext context, int state) {
+        final List<ActivityPageItem> pageItems = [
+          ActivityPage.pageHome,
+          ActivityPage.pagePlaylist,
+        ];
+        final List<BottomNavigationBarItem> items = pageItems.map((ActivityPageItem item) {
+          return BottomNavigationBarItem(
+            icon: item.icon,
+            label: tr(item.code),
+          );
+        }).toList();
+
+        return BottomNavigationBar(
+          currentIndex: state,
+          onTap: (int index) => context.read<NavCubitPage>().updateIndex(index),
+          type: BottomNavigationBarType.fixed,
+          elevation: 0,
+          backgroundColor: Colors.transparent,
+          selectedItemColor: Theme.of(context).colorScheme.primary,
+          unselectedItemColor: Theme.of(context).textTheme.bodySmall!.color,
+          items: items,
+        );
+      }),
+    );
+  }
+}
diff --git a/lib/ui/nav/global_app_bar.dart b/lib/ui/nav/global_app_bar.dart
new file mode 100644
index 0000000000000000000000000000000000000000..4c8c23356f7a5ea603cf9a57526c1a3d034141a5
--- /dev/null
+++ b/lib/ui/nav/global_app_bar.dart
@@ -0,0 +1,67 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+import 'package:spotifyplaylistgenerator/config/screen.dart';
+import 'package:spotifyplaylistgenerator/cubit/activity_cubit.dart';
+import 'package:spotifyplaylistgenerator/cubit/nav_cubit_screens.dart';
+import 'package:spotifyplaylistgenerator/ui/helpers/app_titles.dart';
+
+class GlobalAppBar extends StatelessWidget implements PreferredSizeWidget {
+  const GlobalAppBar({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocBuilder<ActivityCubit, ActivityState>(
+      builder: (BuildContext context, ActivityState activityState) {
+        return BlocBuilder<NavCubitScreen, int>(
+          builder: (BuildContext context, int screenIndex) {
+            final List<Widget> menuActions = [];
+
+            if (screenIndex == Screen.indexActivity) {
+              // go to Settings page
+              menuActions.add(ElevatedButton(
+                onPressed: () {
+                  context.read<NavCubitScreen>().goToSettingsPage();
+                },
+                style: ElevatedButton.styleFrom(
+                  shape: const CircleBorder(),
+                ),
+                child: Screen.screenSettings.icon,
+              ));
+
+              // go to About page
+              menuActions.add(ElevatedButton(
+                onPressed: () {
+                  context.read<NavCubitScreen>().goToAboutPage();
+                },
+                style: ElevatedButton.styleFrom(
+                  shape: const CircleBorder(),
+                ),
+                child: Screen.screenAbout.icon,
+              ));
+            } else {
+              // back to Home page
+              menuActions.add(ElevatedButton(
+                onPressed: () {
+                  context.read<NavCubitScreen>().goToActivityPage();
+                },
+                style: ElevatedButton.styleFrom(
+                  shape: const CircleBorder(),
+                ),
+                child: Screen.screenActivity.icon,
+              ));
+            }
+
+            return AppBar(
+              title: const AppHeader(text: 'app_name'),
+              actions: menuActions,
+            );
+          },
+        );
+      },
+    );
+  }
+
+  @override
+  Size get preferredSize => const Size.fromHeight(50);
+}
diff --git a/lib/ui/pages/home.dart b/lib/ui/pages/home.dart
new file mode 100644
index 0000000000000000000000000000000000000000..9d1283d7563b986f500cc0ce28ff7f61908d7b00
--- /dev/null
+++ b/lib/ui/pages/home.dart
@@ -0,0 +1,28 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+import 'package:spotifyplaylistgenerator/cubit/activity_cubit.dart';
+import 'package:spotifyplaylistgenerator/models/activity/activity.dart';
+
+class PageHome extends StatelessWidget {
+  const PageHome({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocBuilder<ActivityCubit, ActivityState>(
+      builder: (BuildContext context, ActivityState activityState) {
+        final Activity currentActivity = activityState.currentActivity;
+
+        return Column(
+          mainAxisAlignment: MainAxisAlignment.start,
+          crossAxisAlignment: CrossAxisAlignment.center,
+          children: <Widget>[
+            const SizedBox(height: 8),
+            const Text('[home]'),
+            Text(currentActivity.toString()),
+          ],
+        );
+      },
+    );
+  }
+}
diff --git a/lib/ui/pages/playlist.dart b/lib/ui/pages/playlist.dart
new file mode 100644
index 0000000000000000000000000000000000000000..2ccb0ae304d5c5da4f6ef5c0781728ad5674b069
--- /dev/null
+++ b/lib/ui/pages/playlist.dart
@@ -0,0 +1,28 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+import 'package:spotifyplaylistgenerator/cubit/activity_cubit.dart';
+import 'package:spotifyplaylistgenerator/models/activity/activity.dart';
+
+class PagePlaylist extends StatelessWidget {
+  const PagePlaylist({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocBuilder<ActivityCubit, ActivityState>(
+      builder: (BuildContext context, ActivityState activityState) {
+        final Activity currentActivity = activityState.currentActivity;
+
+        return Column(
+          mainAxisAlignment: MainAxisAlignment.start,
+          crossAxisAlignment: CrossAxisAlignment.center,
+          children: <Widget>[
+            const SizedBox(height: 8),
+            const Text('[playlist]'),
+            Text(currentActivity.toString()),
+          ],
+        );
+      },
+    );
+  }
+}
diff --git a/lib/ui/screens/about.dart b/lib/ui/screens/about.dart
new file mode 100644
index 0000000000000000000000000000000000000000..40b71d6234a06137ec50afd960aee17023240b1e
--- /dev/null
+++ b/lib/ui/screens/about.dart
@@ -0,0 +1,41 @@
+import 'package:easy_localization/easy_localization.dart';
+import 'package:flutter/material.dart';
+import 'package:package_info_plus/package_info_plus.dart';
+
+import 'package:spotifyplaylistgenerator/ui/helpers/app_titles.dart';
+
+class ScreenAbout extends StatelessWidget {
+  const ScreenAbout({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.symmetric(horizontal: 8),
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.start,
+        crossAxisAlignment: CrossAxisAlignment.start,
+        mainAxisSize: MainAxisSize.max,
+        children: <Widget>[
+          const SizedBox(height: 8),
+          const AppTitle(text: 'about_title'),
+          const Text('about_content').tr(),
+          FutureBuilder<PackageInfo>(
+            future: PackageInfo.fromPlatform(),
+            builder: (context, snapshot) {
+              switch (snapshot.connectionState) {
+                case ConnectionState.done:
+                  return const Text('about_version').tr(
+                    namedArgs: {
+                      'version': snapshot.data!.version,
+                    },
+                  );
+                default:
+                  return const SizedBox();
+              }
+            },
+          ),
+        ],
+      ),
+    );
+  }
+}
diff --git a/lib/ui/screens/activity.dart b/lib/ui/screens/activity.dart
new file mode 100644
index 0000000000000000000000000000000000000000..fc76f32afc7c4ef1056bd9a71f33afcb7bdecea7
--- /dev/null
+++ b/lib/ui/screens/activity.dart
@@ -0,0 +1,18 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+import 'package:spotifyplaylistgenerator/config/activity_page.dart';
+import 'package:spotifyplaylistgenerator/cubit/nav_cubit_pages.dart';
+
+class ScreenActivity extends StatelessWidget {
+  const ScreenActivity({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocBuilder<NavCubitPage, int>(
+      builder: (BuildContext context, int pageIndex) {
+        return ActivityPage.getPageWidget(pageIndex);
+      },
+    );
+  }
+}
diff --git a/lib/ui/screens/main_screen.dart b/lib/ui/screens/main_screen.dart
deleted file mode 100644
index bffc513336621bbf18f921a295bb623b81452be4..0000000000000000000000000000000000000000
--- a/lib/ui/screens/main_screen.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-import 'package:flutter/material.dart';
-
-import 'package:spotifyplaylistgenerator/ui/widgets/main_screen/user_card.dart';
-
-class MainScreen extends StatelessWidget {
-  const MainScreen({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return Material(
-      color: Theme.of(context).colorScheme.background,
-      child: ListView(
-        padding: const EdgeInsets.symmetric(horizontal: 16),
-        physics: const BouncingScrollPhysics(),
-        children: const <Widget>[
-          SizedBox(height: 90),
-          StatisticsCard(),
-          SizedBox(height: 8),
-          SizedBox(height: 36),
-        ],
-      ),
-    );
-  }
-}
diff --git a/lib/ui/screens/settings.dart b/lib/ui/screens/settings.dart
new file mode 100644
index 0000000000000000000000000000000000000000..ee9bc4899cf23b9b883b7ed9824474cef36d9059
--- /dev/null
+++ b/lib/ui/screens/settings.dart
@@ -0,0 +1,26 @@
+import 'package:flutter/material.dart';
+
+import 'package:spotifyplaylistgenerator/ui/helpers/app_titles.dart';
+import 'package:spotifyplaylistgenerator/ui/settings/settings_form.dart';
+
+class ScreenSettings extends StatelessWidget {
+  const ScreenSettings({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Padding(
+      padding: EdgeInsets.symmetric(horizontal: 8),
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.start,
+        crossAxisAlignment: CrossAxisAlignment.start,
+        mainAxisSize: MainAxisSize.max,
+        children: <Widget>[
+          SizedBox(height: 8),
+          AppTitle(text: 'settings_title'),
+          SizedBox(height: 8),
+          SettingsForm(),
+        ],
+      ),
+    );
+  }
+}
diff --git a/lib/ui/screens/skeleton_screen.dart b/lib/ui/screens/skeleton_screen.dart
deleted file mode 100644
index ec7765d2168f6ffb1bdce03f13f70dbf3ab4c043..0000000000000000000000000000000000000000
--- a/lib/ui/screens/skeleton_screen.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-import 'package:flutter/material.dart';
-
-import 'package:spotifyplaylistgenerator/ui/screens/main_screen.dart';
-import 'package:spotifyplaylistgenerator/ui/widgets/app_bar.dart';
-
-class SkeletonScreen extends StatefulWidget {
-  const SkeletonScreen({super.key});
-
-  @override
-  State<SkeletonScreen> createState() => _SkeletonScreenState();
-}
-
-class _SkeletonScreenState extends State<SkeletonScreen> {
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: const StandardAppBar(),
-      extendBodyBehindAppBar: true,
-      body: const MainScreen(),
-      backgroundColor: Theme.of(context).colorScheme.background,
-    );
-  }
-}
diff --git a/lib/ui/settings/settings_form.dart b/lib/ui/settings/settings_form.dart
new file mode 100644
index 0000000000000000000000000000000000000000..efcb37ce6f61458d4eb3d5fbb8fe97a6dac8b27e
--- /dev/null
+++ b/lib/ui/settings/settings_form.dart
@@ -0,0 +1,63 @@
+import 'package:easy_localization/easy_localization.dart';
+import 'package:flutter/material.dart';
+import 'package:unicons/unicons.dart';
+
+import 'package:spotifyplaylistgenerator/ui/settings/theme_card.dart';
+
+class SettingsForm extends StatefulWidget {
+  const SettingsForm({super.key});
+
+  @override
+  State<SettingsForm> createState() => _SettingsFormState();
+}
+
+class _SettingsFormState extends State<SettingsForm> {
+  @override
+  void dispose() {
+    super.dispose();
+  }
+
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      mainAxisAlignment: MainAxisAlignment.start,
+      crossAxisAlignment: CrossAxisAlignment.start,
+      mainAxisSize: MainAxisSize.max,
+      children: <Widget>[
+        // Light/dark theme
+        Row(
+          mainAxisAlignment: MainAxisAlignment.spaceBetween,
+          crossAxisAlignment: CrossAxisAlignment.center,
+          children: <Widget>[
+            const Text('settings_label_theme').tr(),
+            const Row(
+              mainAxisAlignment: MainAxisAlignment.end,
+              crossAxisAlignment: CrossAxisAlignment.center,
+              children: [
+                ThemeCard(
+                  mode: ThemeMode.system,
+                  icon: UniconsLine.cog,
+                ),
+                ThemeCard(
+                  mode: ThemeMode.light,
+                  icon: UniconsLine.sun,
+                ),
+                ThemeCard(
+                  mode: ThemeMode.dark,
+                  icon: UniconsLine.moon,
+                )
+              ],
+            ),
+          ],
+        ),
+
+        const SizedBox(height: 16),
+      ],
+    );
+  }
+}
diff --git a/lib/ui/settings/theme_card.dart b/lib/ui/settings/theme_card.dart
new file mode 100644
index 0000000000000000000000000000000000000000..37e2a15558bd122bfb875f3bf46eb8f5c2d9aed0
--- /dev/null
+++ b/lib/ui/settings/theme_card.dart
@@ -0,0 +1,47 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+import 'package:spotifyplaylistgenerator/cubit/theme_cubit.dart';
+
+class ThemeCard extends StatelessWidget {
+  const ThemeCard({
+    super.key,
+    required this.mode,
+    required this.icon,
+  });
+
+  final IconData icon;
+  final ThemeMode mode;
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocBuilder<ThemeCubit, ThemeModeState>(
+      builder: (BuildContext context, ThemeModeState state) {
+        return Card(
+          elevation: 2,
+          shadowColor: Theme.of(context).colorScheme.shadow,
+          color: state.themeMode == mode
+              ? Theme.of(context).colorScheme.primary
+              : Theme.of(context).colorScheme.surface,
+          shape: const RoundedRectangleBorder(
+            borderRadius: BorderRadius.all(Radius.circular(12)),
+          ),
+          margin: const EdgeInsets.all(5),
+          child: InkWell(
+            onTap: () => BlocProvider.of<ThemeCubit>(context).getTheme(
+              ThemeModeState(themeMode: mode),
+            ),
+            borderRadius: const BorderRadius.all(Radius.circular(12)),
+            child: Icon(
+              icon,
+              size: 32,
+              color: state.themeMode != mode
+                  ? Theme.of(context).colorScheme.primary
+                  : Colors.white,
+            ),
+          ),
+        );
+      },
+    );
+  }
+}
diff --git a/lib/ui/skeleton.dart b/lib/ui/skeleton.dart
new file mode 100644
index 0000000000000000000000000000000000000000..0ad936cad14cbeb514056339d6772acc767f89c4
--- /dev/null
+++ b/lib/ui/skeleton.dart
@@ -0,0 +1,37 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+import 'package:spotifyplaylistgenerator/config/screen.dart';
+import 'package:spotifyplaylistgenerator/cubit/nav_cubit_screens.dart';
+import 'package:spotifyplaylistgenerator/ui/nav/bottom_nav_bar.dart';
+import 'package:spotifyplaylistgenerator/ui/nav/global_app_bar.dart';
+
+class SkeletonScreen extends StatelessWidget {
+  const SkeletonScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocBuilder<NavCubitScreen, int>(
+      builder: (BuildContext context, int screenIndex) {
+        return Scaffold(
+          appBar: const GlobalAppBar(),
+          extendBodyBehindAppBar: false,
+          body: Material(
+            color: Theme.of(context).colorScheme.surface,
+            child: Padding(
+              padding: const EdgeInsets.only(
+                top: 8,
+                left: 2,
+                right: 2,
+              ),
+              child: Screen.getWidget(screenIndex),
+            ),
+          ),
+          backgroundColor: Theme.of(context).colorScheme.surface,
+          bottomNavigationBar:
+              Screen.displayBottomNavBar(screenIndex) ? const BottomNavBar() : null,
+        );
+      },
+    );
+  }
+}
diff --git a/lib/ui/widgets/app_bar.dart b/lib/ui/widgets/app_bar.dart
deleted file mode 100644
index f33196b08db3c4aab4290d6cc41aa2739ab48ffe..0000000000000000000000000000000000000000
--- a/lib/ui/widgets/app_bar.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-import 'package:flutter/material.dart';
-
-import 'package:spotifyplaylistgenerator/ui/widgets/header.dart';
-
-class StandardAppBar extends StatefulWidget implements PreferredSizeWidget {
-  const StandardAppBar({super.key});
-
-  @override
-  State<StandardAppBar> createState() => _StandardAppBarState();
-
-  @override
-  Size get preferredSize => const Size.fromHeight(50);
-}
-
-class _StandardAppBarState extends State<StandardAppBar> {
-  @override
-  Widget build(BuildContext context) {
-    return AppBar(
-      title: const Header(text: 'app_name'),
-      actions: const [],
-    );
-  }
-}
diff --git a/lib/ui/widgets/error.dart b/lib/ui/widgets/error.dart
deleted file mode 100644
index 9aacdcb7d4796e332b8a3160284aa8ced0e4f1c3..0000000000000000000000000000000000000000
--- a/lib/ui/widgets/error.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-import 'package:easy_localization/easy_localization.dart';
-import 'package:flutter/material.dart';
-
-class ShowErrorWidget extends StatelessWidget {
-  const ShowErrorWidget({super.key, required this.message});
-
-  final String message;
-
-  @override
-  Widget build(BuildContext context) {
-    return Text(
-      '⚠️ ${tr(message)}',
-      textAlign: TextAlign.start,
-      style: const TextStyle(color: Colors.red),
-    );
-  }
-}
diff --git a/lib/ui/widgets/header.dart b/lib/ui/widgets/header.dart
deleted file mode 100644
index 2187ef84a2dbad4dd0cfa7986bdb4473b0af0462..0000000000000000000000000000000000000000
--- a/lib/ui/widgets/header.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-import 'package:easy_localization/easy_localization.dart';
-import 'package:flutter/material.dart';
-
-class Header extends StatelessWidget {
-  const Header({super.key, required this.text});
-
-  final String text;
-
-  @override
-  Widget build(BuildContext context) {
-    return Text(
-      tr(text),
-      textAlign: TextAlign.start,
-      style: Theme.of(context).textTheme.headlineMedium!.apply(fontWeightDelta: 2),
-    );
-  }
-}
diff --git a/lib/ui/widgets/main_screen/user_card.dart b/lib/ui/widgets/main_screen/user_card.dart
deleted file mode 100644
index 45e9a4c2359004dbeabbb956c67014ec37cc46d5..0000000000000000000000000000000000000000
--- a/lib/ui/widgets/main_screen/user_card.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-import 'package:flutter/material.dart';
-
-class StatisticsCard extends StatelessWidget {
-  const StatisticsCard({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return const Text('👤');
-  }
-}
diff --git a/pubspec.lock b/pubspec.lock
index ee13cb691faf6b16f1448973e2073074161f4c76..c1e8da24d00536dce1d9409b0ef6d537b7ff69db 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -5,10 +5,10 @@ packages:
     dependency: transitive
     description:
       name: args
-      sha256: eef6c46b622e0494a36c5a12d10d77fb4e855501a91c1b9ef9339326e58f0596
+      sha256: "7cf60b9f0cc88203c5a190b4cd62a99feea42759a7fa695010eb5de1c0b2252a"
       url: "https://pub.dev"
     source: hosted
-    version: "2.4.2"
+    version: "2.5.0"
   async:
     dependency: transitive
     description:
@@ -17,6 +17,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.11.0"
+  bloc:
+    dependency: transitive
+    description:
+      name: bloc
+      sha256: "106842ad6569f0b60297619e9e0b1885c2fb9bf84812935490e6c5275777804e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.1.4"
   characters:
     dependency: transitive
     description:
@@ -41,14 +49,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.18.0"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      sha256: ff625774173754681d66daaf4a448684fb04b78f902da9cb3d308c19cc5e8bab
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.3"
   easy_localization:
     dependency: "direct main"
     description:
       name: easy_localization
-      sha256: c145aeb6584aedc7c862ab8c737c3277788f47488bfdf9bae0fe112bd0a4789c
+      sha256: fa59bcdbbb911a764aa6acf96bbb6fa7a5cf8234354fc45ec1a43a0349ef0201
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.5"
+    version: "3.0.7"
   easy_logger:
     dependency: transitive
     description:
@@ -57,6 +73,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.0.2"
+  equatable:
+    dependency: "direct main"
+    description:
+      name: equatable
+      sha256: c2b87cb7756efdf69892005af546c56c0b5037f54d2a88269b4f347a505e3ca2
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.5"
   ffi:
     dependency: transitive
     description:
@@ -78,14 +102,22 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_bloc:
+    dependency: "direct main"
+    description:
+      name: flutter_bloc
+      sha256: b594505eac31a0518bdcb4b5b79573b8d9117b193cc80cc12e17d639b10aa27a
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.1.6"
   flutter_lints:
     dependency: "direct dev"
     description:
       name: flutter_lints
-      sha256: e2a421b7e59244faef694ba7b30562e489c2b489866e505074eb005cd7060db7
+      sha256: "3f41d009ba7172d5ff9be5f6e6e6abb4300e263aab8866d2a0842ed2a70f8f0c"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.1"
+    version: "4.0.0"
   flutter_localizations:
     dependency: transitive
     description: flutter
@@ -96,6 +128,14 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  hive:
+    dependency: "direct main"
+    description:
+      name: hive
+      sha256: "8dcf6db979d7933da8217edcec84e9df1bdb4e4edc7fc77dbd5aa74356d6d941"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.3"
   http:
     dependency: "direct main"
     description:
@@ -112,22 +152,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.0.2"
+  hydrated_bloc:
+    dependency: "direct main"
+    description:
+      name: hydrated_bloc
+      sha256: af35b357739fe41728df10bec03aad422cdc725a1e702e03af9d2a41ea05160c
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.1.5"
   intl:
     dependency: transitive
     description:
       name: intl
-      sha256: "3bc132a9dbce73a7e4a21a17d06e1878839ffbf975568bc875c60537824b0c4d"
+      sha256: d6f56758b7d3014a48af9701c085700aac781a92a87a62b1333b46d8879661cf
       url: "https://pub.dev"
     source: hosted
-    version: "0.18.1"
+    version: "0.19.0"
   lints:
     dependency: transitive
     description:
       name: lints
-      sha256: cbf8d4b858bb0134ef3ef87841abdf8d63bfc255c266b7bf6b39daa1085c4290
+      sha256: "976c774dd944a42e83e2467f4cc670daef7eed6295b10b36ae8c85bcbf828235"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.0"
+    version: "4.0.0"
   material_color_utilities:
     dependency: transitive
     description:
@@ -140,10 +188,34 @@ packages:
     dependency: transitive
     description:
       name: meta
-      sha256: d584fa6707a52763a52446f02cc621b077888fb63b93bbcb1143a7be5a0c0c04
+      sha256: "7687075e408b093f36e6bbf6c91878cc0d4cd10f409506f7bc996f68220b9136"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.12.0"
+  nested:
+    dependency: transitive
+    description:
+      name: nested
+      sha256: "03bac4c528c64c95c722ec99280375a6f2fc708eec17c7b3f07253b626cd2a20"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  package_info_plus:
+    dependency: "direct main"
+    description:
+      name: package_info_plus
+      sha256: b93d8b4d624b4ea19b0a5a208b2d6eff06004bc3ce74c06040b120eeadd00ce0
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.0.0"
+  package_info_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: package_info_plus_platform_interface
+      sha256: f49918f3433a3146047372f9d4f1f847511f2acd5cd030e1f44fe5a50036b70e
       url: "https://pub.dev"
     source: hosted
-    version: "1.11.0"
+    version: "3.0.0"
   path:
     dependency: transitive
     description:
@@ -152,6 +224,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.0"
+  path_provider:
+    dependency: "direct main"
+    description:
+      name: path_provider
+      sha256: c9e7d3a4cd1410877472158bee69963a4579f78b68c65a2b7d40d1a7a88bb161
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.3"
+  path_provider_android:
+    dependency: transitive
+    description:
+      name: path_provider_android
+      sha256: bca87b0165ffd7cdb9cad8edd22d18d2201e886d9a9f19b4fb3452ea7df3a72a
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.6"
+  path_provider_foundation:
+    dependency: transitive
+    description:
+      name: path_provider_foundation
+      sha256: f234384a3fdd67f989b4d54a5d73ca2a6c422fa55ae694381ae0f4375cd1ea16
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.0"
   path_provider_linux:
     dependency: transitive
     description:
@@ -180,10 +276,10 @@ packages:
     dependency: transitive
     description:
       name: platform
-      sha256: "12220bb4b65720483f8fa9450b4332347737cf8213dd2840d8b2c823e47243ec"
+      sha256: "9b71283fc13df574056616011fb138fd3b793ea47cc509c189a6c3fa5f8a1a65"
       url: "https://pub.dev"
     source: hosted
-    version: "3.1.4"
+    version: "3.1.5"
   plugin_platform_interface:
     dependency: transitive
     description:
@@ -192,30 +288,38 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.8"
+  provider:
+    dependency: transitive
+    description:
+      name: provider
+      sha256: c8a055ee5ce3fd98d6fc872478b03823ffdb448699c6ebdbbc71d59b596fd48c
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.1.2"
   shared_preferences:
     dependency: transitive
     description:
       name: shared_preferences
-      sha256: "81429e4481e1ccfb51ede496e916348668fd0921627779233bd24cc3ff6abd02"
+      sha256: d3bbe5553a986e83980916ded2f0b435ef2e1893dfaa29d5a7a790d0eca12180
       url: "https://pub.dev"
     source: hosted
-    version: "2.2.2"
+    version: "2.2.3"
   shared_preferences_android:
     dependency: transitive
     description:
       name: shared_preferences_android
-      sha256: "8568a389334b6e83415b6aae55378e158fbc2314e074983362d20c562780fb06"
+      sha256: "93d0ec9dd902d85f326068e6a899487d1f65ffcd5798721a95330b26c8131577"
       url: "https://pub.dev"
     source: hosted
-    version: "2.2.1"
+    version: "2.2.3"
   shared_preferences_foundation:
     dependency: transitive
     description:
       name: shared_preferences_foundation
-      sha256: "7708d83064f38060c7b39db12aefe449cb8cdc031d6062280087bc4cdb988f5c"
+      sha256: "0a8a893bf4fd1152f93fec03a415d11c27c74454d96e2318a7ac38dd18683ab7"
       url: "https://pub.dev"
     source: hosted
-    version: "2.3.5"
+    version: "2.4.0"
   shared_preferences_linux:
     dependency: transitive
     description:
@@ -269,6 +373,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.2.0"
+  synchronized:
+    dependency: transitive
+    description:
+      name: synchronized
+      sha256: "539ef412b170d65ecdafd780f924e5be3f60032a1128df156adad6c5b373d558"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.0+1"
   term_glyph:
     dependency: transitive
     description:
@@ -289,10 +401,10 @@ packages:
     dependency: "direct main"
     description:
       name: unicons
-      sha256: dbfcf93ff4d4ea19b324113857e358e4882115ab85db04417a4ba1c72b17a670
+      sha256: "1cca7462df18ff191b7e41b52f747d08854916531d1d7ab7cec0552095995206"
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.2"
   vector_math:
     dependency: transitive
     description:
@@ -305,18 +417,18 @@ packages:
     dependency: transitive
     description:
       name: web
-      sha256: "1d9158c616048c38f712a6646e317a3426da10e884447626167240d45209cbad"
+      sha256: "97da13628db363c635202ad97068d47c5b8aa555808e7a9411963c533b449b27"
       url: "https://pub.dev"
     source: hosted
-    version: "0.5.0"
+    version: "0.5.1"
   win32:
     dependency: transitive
     description:
       name: win32
-      sha256: "464f5674532865248444b4c3daca12bd9bf2d7c47f759ce2617986e7229494a8"
+      sha256: a79dbe579cb51ecd6d30b17e0cae4e0ea15e2c0e66f69ad4198f22a6789e94f4
       url: "https://pub.dev"
     source: hosted
-    version: "5.2.0"
+    version: "5.5.1"
   xdg_directories:
     dependency: transitive
     description:
@@ -326,5 +438,5 @@ packages:
     source: hosted
     version: "1.0.4"
 sdks:
-  dart: ">=3.3.0 <4.0.0"
-  flutter: ">=3.19.0"
+  dart: ">=3.4.0 <4.0.0"
+  flutter: ">=3.22.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index 549503d8a91c82695e446b258733de89fc8d9259..cf04d2f3a09d95ac80a225ebc4c7bede7884694c 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,23 +1,35 @@
 name: spotifyplaylistgenerator
 description: Create and manage Spotify playlists
 
-publish_to: 'none'
+publish_to: "none"
 
-version: 0.0.5+5
+version: 0.0.6+6
 
 environment:
-  sdk: '^3.0.0'
+  sdk: "^3.0.0"
 
 dependencies:
   flutter:
     sdk: flutter
 
+  # base
   easy_localization: ^3.0.1
-  http: ^1.1.0
+  equatable: ^2.0.5
+  flutter_bloc: ^8.1.1
+  hive: ^2.2.3
+  hydrated_bloc: ^9.0.0
+  package_info_plus: ^8.0.0
+  path_provider: ^2.0.11
   unicons: ^2.1.1
 
+  # specific
+  http: ^1.1.0
+
+dev_dependencies:
+  flutter_lints: ^4.0.0
+
 flutter:
-  uses-material-design: false
+  uses-material-design: true
   assets:
     - assets/translations/
 
@@ -32,5 +44,4 @@ flutter:
           weight: 400
         - asset: assets/fonts/Nunito-Light.ttf
           weight: 300
-dev_dependencies:
-  flutter_lints: ^3.0.1
+
diff --git a/icons/build_repository_icons.sh b/resources/app/build_application_resources.sh
similarity index 98%
rename from icons/build_repository_icons.sh
rename to resources/app/build_application_resources.sh
index 27dbe2647fe4e6d562fbd99451716d1b7d448570..6d67b8f4f9eca701d1aed7331ef41dfb0bd44f20 100755
--- a/icons/build_repository_icons.sh
+++ b/resources/app/build_application_resources.sh
@@ -6,7 +6,7 @@ command -v scour >/dev/null 2>&1 || { echo >&2 "I require scour but it's not ins
 command -v optipng >/dev/null 2>&1 || { echo >&2 "I require optipng but it's not installed. Aborting."; exit 1; }
 
 CURRENT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
-BASE_DIR="$(dirname "${CURRENT_DIR}")"
+BASE_DIR="$(dirname "$(dirname "${CURRENT_DIR}")")"
 
 SOURCE_ICON="${CURRENT_DIR}/icon.svg"
 SOURCE_FASTLANE="${CURRENT_DIR}/featureGraphic.svg"
diff --git a/icons/featureGraphic.svg b/resources/app/featureGraphic.svg
similarity index 100%
rename from icons/featureGraphic.svg
rename to resources/app/featureGraphic.svg
diff --git a/icons/icon.svg b/resources/app/icon.svg
similarity index 100%
rename from icons/icon.svg
rename to resources/app/icon.svg
diff --git a/resources/build_resources.sh b/resources/build_resources.sh
new file mode 100755
index 0000000000000000000000000000000000000000..8d5848a985ed1068f6e6226379a9cedb69c3fa15
--- /dev/null
+++ b/resources/build_resources.sh
@@ -0,0 +1,6 @@
+#! /bin/bash
+
+CURRENT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
+
+${CURRENT_DIR}/app/build_application_resources.sh
+